1976 KZ400, cracked butterfly?

Well, upon dissemblance of the carburetors off of my 1976 KZ400S2, i found that when the butterflies were closed, one was closed and the other was open. I Looked closer and say that one of the butterflies was cracked because whoever tried to clean them before me must have lost the screws to it and used the wrong sized ones and split it. So, what i was wondering if anybody had a set of carbs off a a 1976 KZ400 for parts that they wouldn't mind selling me or just giving me one of the little metal disks that open and close with the throttle. I have money to spend so let me know what you want. I just need the butterfly that opens and closes when you pull on the throttle.

Thanks,
KT

Well I don't but this explains some of your Post's with problems. The last owner must have had some problems with loosing screw's or a bad mechanic.
Try EBAY someone would have the Carb's there.